8 CCR 1202-4, pt. 7.0 - ADULTERATION
Metals |
ppm per 1% P2O5 |
ppm per 1% Micronutrients1 |
1. Arsenic |
13 |
112 |
2. Cadmium |
10 |
83 |
3. Cobalt |
1362 |
22282 |
4. Lead |
61 |
463 |
5. Mercury |
1 |
6 |
6. Molybdenum |
42 |
3002 |
7. Nickel |
250 |
1,900 |
8. Selenium |
26 |
180 |
9. Zinc |
420 |
2,9002 |
1 Micro-nutrients include secondary and micro plant nutrients. Secondary plant nutrients are calcium, magnesium, and sulfur. Micro plant nutrients are boron, chlorine, cobalt, copper, iron, manganese, molybdenum, nickel, sodium, and zinc.
2 Only applies when not guaranteed.
Metals |
Maximum level mg/kg dry weight basis |
Arsenic |
41 |
Cadmium |
39 |
Copper |
1500 |
Lead |
300 |
Mercury |
17 |
Nickel |
420 |
Selenium |
100 |
Zinc |
2800 |
Notes
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.